Which backend frameworks and frontend libraries do you specialise in?

We specialise in modern PHP and Laravel for high-performance server architectures, paired with React.js or Vue.js on the frontend, structured with clean relational PostgreSQL/MySQL database designs and Redis caching.

How do you guarantee code security and protect our intellectual property?

We implement role-based access control on Git repositories, AES-256 encryption at rest, TLS 1.3 in transit, and continuous OWASP Top 10 vulnerability scanning. Full IP and repository ownership transfer directly to you upon milestone delivery.

How are development sprints and progress tracked during the build?

We work in staged bi-weekly sprints with review checkpoints rather than a single black-box handoff. You get access to live staging environments, Git pull requests, and scheduled demos aligned to UK business hours.

Enterprise Web Applications • Portals • SaaS Engineering

Custom Web Application Development for UK Startups & Enterprises

When your business needs more than a website — a customer portal, an internal dashboard, or a SaaS platform — that's an application build, not a design project. As a senior web app development agency and technical web application development firm, ONS Tech Global builds scalable, secure web applications for UK founders, CTOs, and corporate teams across London, Manchester, and the wider UK.

Discuss Your Application Architecture

Real-Time UK Working Hours: Direct engineering access with daily GMT/BST standups and dedicated Slack communication.

Application Architecture Production Proven

Primary Backend Laravel / PHP 8.3 / Node.js

Frontend Layer React.js / Vue.js / Tailwind CSS

Databases PostgreSQL / MySQL / Redis

Security Standard OWASP Top 10 • RBAC • AES-256

Verified Proof KudoClass School & Hospital ERP

Code Delivery Git PRs • Automated CI/CD

Inspect Enterprise Case Studies

Full-Stack Engineering

What We Build: Scalable, Production-Ready Web Software

We don't build generic marketing mockups. As seasoned web and app developers, we construct bulletproof, production-grade applications that withstand real commercial loads.

Scalable Backend Architecture

Laravel and PHP-based systems built to handle real production load, not just a proof of concept. Clean domain-driven design, queued background workers, and microservice modularity.

Modern Reactive Front Ends

React.js and Vue.js interfaces for data-heavy, interactive applications. Sub-second state updates, asynchronous data fetching, and accessible, responsive design components.

Bespoke API Integrations

Connecting your application seamlessly to payment processors (Stripe UK, GoCardless), CRMs (Salesforce, HubSpot), ERPs, and internal legacy business systems via secure REST and GraphQL endpoints.

High-Efficiency Database Design

Relational schemas designed specifically for the data volume and query patterns your application actually needs, with indexed searching, automated migrations, and Redis caching layers.

Client & Staff Portals

Secure self-service portals, account management consoles, document upload workflows, and role-based permissions designed to automate manual operational overhead.

Real, Production-Grade Proof

We have engineered a full production School ERP product (KudoClass) and comprehensive Hospital Custom ERP systems — genuine evidence of shipping complex, mission-critical applications.

Enterprise Standards

Strict Security Practices & Staged Engineering Governance

When commissioning web app development services, security cannot be an afterthought. We embed robust security protocols and transparent governance into every sprint:

Role-Based Access Control on Repositories

Client source code repositories are locked down with fine-grained RBAC, strictly limited to assigned engineers with multi-factor authentication enforced.

Encryption at Rest & in Transit

All data in transit is encrypted using modern TLS 1.3 ciphers, and sensitive database columns are protected using AES-256 encryption with automated audit logging.

Staged Delivery with Review Checkpoints

Rather than an uncertain single handoff at the end, we deliver in bi-weekly milestones with pull request reviews, automated CI/CD tests, and live staging previews.

Sprint Delivery Framework

Agile Sprints

Stage 1: Architecture & Data Modelling Week 1–2

Entity-relationship diagramming, API contracts, security definitions, and design system wireframes.

Stage 2: Core Engine & API Integration Week 3–5

Laravel backend development, database migrations, third-party payment & CRM integration, and authentication.

Stage 3: Reactive Frontend & User Journeys Week 5–7

React or Vue.js user interfaces, responsive state management, and real-time client feedback loops.

Stage 4: QA, Security Audit & Handover Week 7–8

Penetration testing, load verification, automated CI/CD pipeline handoff, and complete IP transfer.

Technical Clarity

Frequently Asked Questions on Web Application Development

Direct insights into our software architecture, integrations, and IP ownership.

Both — ONS Tech has built standalone production applications (including a full School ERP product) as well as extending and integrating with clients' existing systems via APIs.

You maintain 100% ownership of all source code, database architectures, documentation, and digital assets. Upon milestone approval, all intellectual property is transferred directly into your company’s Git repository.

We follow privacy-by-design principles: data minimization in forms, pseudonymized user logs, automated deletion routines, and secure UK/EU server hosting configurations that satisfy ICO enforcement requirements.

We offer dedicated monthly engineering retainers or scheduled support agreements covering server monitoring, dependency patching, security updates, and rapid feature iteration under agreed turnaround response times.

Direct Technical Scoping

Request an Architecture Review & Fixed-Price Quote

Speak directly with senior backend and frontend architects. We review your specifications and supply a detailed milestone estimate in GBP (£) within 24 hours.

Your Full Name *

Business Email *

Company Name

Current App / Spec Link

Application Type

Estimated Timeline

Functional Requirements & Architecture Details *

UK GDPR & Data Protection Act 2018 (ICO) Compliance: Your specifications and data are protected by strict confidentiality and processed solely for this technical assessment. We never share your details. Contact privacy@onstechglobal.com for data enquiries.

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